Squeak-dev August 2008

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103 participants
139 discussions

Fullscreen UI
by Torsten Bergmann 22 Aug '08

22 Aug '08

Hi Udo, have a look Tansel's minimal UI at http://wiki.squeak.org/squeak/6032 in the section "Minimal UI For Embedded Systems, Mobile computing and Kiosks" Code/Image is at http://www.squeakonline.com/downloads/cedemo.zip. or at Project "Tweak" - a rewrite of the morphic UI for Croquet: http://wiki.squeak.org/squeak/3867 Bye Torsten -- GMX Kostenlose Spiele: Einfach online spielen und Spaß haben mit Pastry Passion! http://games.entertainment.gmx.net/de/entertainment/games/free/puzzle/61691…

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Random randomness
by Andreas Raab 22 Aug '08

22 Aug '08

Hi - Today I've encountered two very interesting issues with respect to Random. First, there seems to be a bug when using very large seeds, for example: rnd := Random seed: 300000000000. rnd nextInt: 100. This answers -121 which is just plain completely wrong! Any ideas for how to fix this? Secondly, what is a good way to seed a random number generator that one will only pull out very few numbers? We found that a naive approach works very badly which is illustrated here: 1 to: 100 do:[:i| rnd := Random new. Transcript show: (rnd nextInt: 100); space. ]. There is almost no variation in the numbers. If this would be running out of one image, I would do something like here: base := Random new. 1 to: 100 do:[:i| rnd := Random seed: (base nextInt: 1234567). Transcript show: (rnd nextInt: 100); space. ]. which looks much more nicely distributed but unfortunately this code will be run in different images. So having something that is based on the millsecond clock is probably good but there still seems to be very little variation when I run a couple of tests. Any insights welcome! Cheers, - Andreas

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[ANN] MC Converter 1.1.31
by Colin Putney 22 Aug '08

22 Aug '08

Hi all, MC Converter is a simple utility for converting MC 1.x repositories into MC 2.0 repositories. It's the tool I used to take MC 2.0 self hosting, and I've successfully used it to convert some large-ish projects like OmniBrowser. With all the versions of MC 1.x floating around out there, however, I do expect that there will be some issues and incompatibilities. If you do run into problems converting repositories, please let me know so I can help sort them out. Download it from here: http://www.wiresong.ca/static/releases/MCConverter-current.st To convert a repository, do the following: - build an image that contains both your preferred version of MC 1.x and MC 2.0 - create directory repository containing all the MC1 versions you want to convert - file in MCConverter - write a conversion script - see MDIncrementalConverter>>convertMC2 for an example - run the script to convert the repository - open the new repository in an MC2 repository browser to examine the results Colin

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[ANN] Monticello 2.0.21
by Colin Putney 22 Aug '08

22 Aug '08

Hi all, This version adds a new kind of repository - called a "directory repository" - that implements the write-to-one-file-and-read-from-many strategy that Avi suggested for team development. It's available at the usual place: http://www.wiresong.ca/static/releases/Monticello-current.zip Colin

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Accented character input in Linux
by Bert Freudenberg 21 Aug '08

21 Aug '08

Folks, this repeatedly came up on the Newbies list, but maybe reposting it here will expedite inclusion in a release :) See below. - Bert - Anfang der weitergeleiteten E-Mail: > Von: Bert Freudenberg <bert(a)freudenbergs.de> > Datum: 21. August 2008 14:17:12 MESZ > An: "A friendly place to get answers to even the most basic > questions about Squeak." <beginners(a)lists.squeakfoundation.org> > Betreff: Re: [Newbies] accented characters + squeak > Antwort an: "A friendly place to get answers to even the most basic > questions about Squeak." <beginners(a)lists.squeakfoundation.org> > > Am 21.08.2008 um 10:14 schrieb Hervé Darce: > >> The image etoys.image allows me to enter accented characters >> correctly. Thus, the problem is this image https://gforge.inria.fr/frs/download.php/5550/sq3.10.2-7179web08.08.1.zip >> . >> Thanks, now I know that accented characters on the keyboard can be >> used by squeak. >> >> So how to solve the problem of my first image? > > > You need to apply some fixes: > > http://lists.squeakfoundation.org/pipermail/beginners/2008-July/004656.html > > They were reported to work (see that thread). > > I asked the last guy who ran into this to report it on http://bugs.squeak.org/ > along with the fixes, but I'm not sure he did. So I do not know > when it will be folded into a Squeak release. > > - Bert - > > _______________________________________________ > Beginners mailing list > Beginners(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners

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SystemsWindow color mixup
by Trygve Reenskaug 21 Aug '08

21 Aug '08

Squeak3.10.gamma.7159 The following code gives surprising results: -- / | window pasteUpMorph | (pasteUpMorph := PasteUpMorph new) color: Color green. window := SystemWindow new. window addMorph: pasteUpMorph frame: (0(a)0.1 corner: 1@1). window openInWorld./ -- The result is a SystemsWindow with all submorphs green except the pasteUpMorph, which is white! The offending statements are in SystemWindowaddMorph: aMorph fullFrame: aLayoutFrame /aMorph adoptPaneColor: self paneColor. aMorph borderWidth: 1; borderColor: Color lightGray; color: Color white. self paneColor/ has surprising side effects. - It sets set the SystemsWindow property: paneColor->pasteupMorph color. (i.e., green) - It sets the color of all SystemsWindow submorphs to the new color (i.e. green) /aMorph borderWidth: 1; borderColor: Color lightGray; color: Color white. /simply sets the color of the pasteUpMorph to white. The result is that /ScrollPane>>example1/ and any other simple use of /ScrollPane /don't work properly. I fixed the problem by setting the SystemWindow>>paneColor early: / // | window pasteUpMorph | (pasteUpMorph := PasteUpMorph new) color: Color green. window := SystemWindow new./ _/window paneColor: Color white./_ / window addMorph: pasteUpMorph frame: (0(a)0.1 corner: 1@1). window openInWorld./_//_ Enjoy --Trygve -- Trygve Reenskaug mailto: trygver(a)ifi.uio.no Morgedalsvn. 5A http://heim.ifi.uio.no/~trygver N-0378 Oslo Tel: (+47) 22 49 57 27 Norway

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3.10 debugger changes : what happened to "mail report to..." and "explore" (in addition to inspect)?
by itsme213 21 Aug '08

21 Aug '08

I had these in my 3.9 image. Thanks - Sophie

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Traits strangeness
by itsme213 20 Aug '08

20 Aug '08

I have been beset by some trait strangeness. I am using damien's 3.9.1 images (via ramon). A trait (T) method (tmA) 'inherited' by a class C usually shows up in italics in a class browser on C. Editing tmA on T itself correctly affects C. Then, seemingly at random, a trait edit will not propagate to the class. When I look at C I now see tmA without italics. It has the old version of tmA. I did not put it there myself. In between were some round trips to monticello, and some saves or exits or re-starts of the image. Any ideas? I did a tiny experiment and predictably could not reproduce it. Thanks - Sophie

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ANN: SqueakDBX
by Esteban Lorenzano 20 Aug '08

20 Aug '08

We are very glad to announce the first beta release of SqueakDBX. The aim of this project is to build an OpenDBX (http://www.linuxnetworks.de/doc/index.php/OpenDBX/ ) plugin which will allow users to perform relational database operations (DDL, DML and SQL) through a truly open source library. This project has been selected as part of ESUG, SummerTalk 2008 (please, visit http://www.esug.org/Promotion/SummerTalk). Through this project, the squeak community will hopefully be able to interact with major database engines such as Oracle and MSSQL besides open sources Postgresql and MySQL. Moreover, integrating this plugin with GLORP (http://www.glorp.org/), will allow us to generate a complete and open source solution to relational data base access. We have been working in this project since january and we finally get our first beta release. This release does not have all the features we want it to have, just some of them, but we think is very usable. The features for this release are: Tested on 3.10 and Pharo. Support for Linux and OSX. Proved on windows (through MinGW), but some changes on OpenDBX are still needed (next version will have full compatibility). Tested on PostgreSQL, MySQL and Oracle. MS SQL Server, Firebird, Interbase, SQLite, SQLite3 and Sybase tests will be available as soon as possible. Transactional management. Automatic conversion of resultset columns (a String) into squeak types. Large objects (clob, blob, arrays, and so on) are not yet supported. Special OpenDBX options: multi-statments, compression, paged results. Automated database connection release on garbage collection (although manual disconnection is recommended ;-) Error handling Good news: Lots of unit tests (82 right now, and more coming) The code is commented Full documentation at wiki There are some benchmarks done and it seems to be as fast as native driver There are some benchmarking (more needed), but shows we are reaching good performance (http://wiki.squeak.org/squeak/6063) We think its important for you to know: We just test with MySQL 5, Postgres 8.3 and Oracle 10g XE. We just test with Ubuntu and OSX, and very few (not really enough) in windows. Special thanks. We really want to thanks to: Of course, Stephane Ducasse and all ESUG people, for the interest (and funding) showed on this project. Norbert Sendetzky (OpenDBX author) because all the help he gave us not only with OpenDBX but also with SqueakDBX. Help wanted. We are really convinced about open source projects. A software project is better when people share opinions, work, advice, comments, etc. We would really appreciate if you: Give us opinions, comments, ideas, new features, complaints and so on. tell us if you find a bug. tell us if you test SqueakDBX with other RDMBS or OS different from the ones we tested. Just to know if it works or not :) Full documentation, installation and getting started instructions can be found at wiki page: http://wiki.squeak.org/squeak/6052 Packages can be installed from Universe (3.10) or SqueakMap. Current version is 0.7.1 Sources can be download from SqueakSource http://www.squeaksource.com/SqueakDBX (it requires FFI installed) Many thanks, SqueakDBX team

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some more missing signatures
by Yoshiki Ohshima 20 Aug '08

20 Aug '08

Hello, I have a few questions in regards to the method authorship in the past and current. If you have answers to some of the questions, that would be really great. If you can get the person to sign the agreement letter, and email the scanned PDF or send the letter to Viewpoints, that would be really nice. Thank you! 1. The following methods from the Sophie project have initials 'JSM', but isn't it actually by John M. Mcintosh? ExtendedClipboardInterface class >> shutDown: ExtendedClipboardInterface class >> startUp: ExtendedClipboardSunit >> testClearClipboard ExtendedClipboardSunit >> testAddClipboardData ExtendedClipboardSunit >> setUp ExtendedClipboardInterface >> primAddClipboardData:data:dataFormat: ExtendedClipboardInterface >> primGetClipboardFormat:formatNumber: ExtendedClipboardInterface >> primClearClipboard: ExtendedClipboardInterface >> primCreateClipboard ExtendedClipboardInterface >> primReadClipboardData:format: 2. Does anybody has a contact with Jesse Welton? 3. Does anybody remember that who was 'jdl'? He basically replaced _ with := for methods including the following: Sonogram >> plotColumn: SpeakerMorph >> appendSample: PasteUpMorph >> selectedRect MovieMorph >> setFrame: MovieMorph >> currentFrame StarSqueakMorph >> displayPatchVariableOn:color:shift: StarSqueakMorph >> setPatchBrightnessAtX:y:to: StarSqueakMorph >> primDiffuseFrom:to:width:height:delta: StarSqueakMorph >> uphillOf:forTurtle: TransformationMorph >> scaleToMatch: MPEGDisplayMorph >> volume: TableLayout >> minExtentVertical: TableLayout >> computeCellArrangement:in:horizontal:target: TableLayout >> layoutLeftToRight:in: TableLayout >> minExtentHorizontal: TableLayout >> layoutTopToBottom:in: ChessPlayerAI >> statusString 4. Does anybody has a contact with 'jp', who is supposed to be Jens Pall Hafsteinsson and Samuel S. Shuster, both of whom did a work on SUnit? 5. 'md\' edited #browseIt. Who was it? Is it a typo of Marcus Denker? 6. Does anybody has a contact with Jay Carlson? 7. Does anybody has a contact with Richard A. Harmon? 8. Does anybody has a contact with Russell Swan? 9. Who is 'rk' and 'rkris' who worked on the methods including following? HtmlEntity class >> convertToNumber: HtmlEntity class >> valueOfHtmlEntity: DownloadingImageMorph >> setContents HtmlFormatter >> initialize String >> replaceHtmlCharRefs HtmlTokenizer >> nextTag HtmlEntity class >> initialize DownloadingImageMorph >> step HtmlBlockQuote >> addToFormatter: XMLTokenizer >> nextExternalId 10. Does anybody has a contact with Gerardo Richarte? 11. Does anybody know who is 'TBP' and 'Tbp', who edited methods including: ChatNotes >> recorder ChatNotes >> updateNotes ChatNotes >> name: ChatNotes >> defaultBackgroundColor ChatNotes >> initialExtent ChatNotes >> stop AlertMorph >> canHaveFillStyles AlertMorph >> color: AlertMorph >> stepTime AudioChatGUI >> defaultBackgroundColor AudioChatGUI >> initialExtent ChatRecorder >> recordedSound: AudioChatGUI >> stop ChatButtonMorph >> actionUpSelector: ChatButtonMorph >> actionDownSelector: ChatButtonMorph >> labelUp: ChatButtonMorph >> labelDown:

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